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Analysis

  • max time kernel
    119s
  • max time network
    117s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/11/2024, 20:47

General

  • Target

    fe42a97a272f23621e6589b4c003922a3bbffdc7288b50517e6045cee3db9e8aN.exe

  • Size

    23KB

  • MD5

    6e6d2f25fe0c0749d169b526d5b04d30

  • SHA1

    bdb9d5b480392c48974daede2d860c0e3f6f5bc8

  • SHA256

    fe42a97a272f23621e6589b4c003922a3bbffdc7288b50517e6045cee3db9e8a

  • SHA512

    701e0513483e6c08d9f99e5d71d0dac60bbb76a8cee4164f1a3fceb3c6d05f97c68e05e81c8f5c33a9e401dc7dc6ccf25bc0761fc235a13e06bc15cc827c7138

  • SSDEEP

    384:poWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZI7:+7O89p2rRpcnuF

Malware Config

Signatures

  • Njrat family
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of AdjustPrivilegeToken 27 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fe42a97a272f23621e6589b4c003922a3bbffdc7288b50517e6045cee3db9e8aN.exe
    "C:\Users\Admin\AppData\Local\Temp\fe42a97a272f23621e6589b4c003922a3bbffdc7288b50517e6045cee3db9e8aN.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1188
    • C:\Users\Admin\AppData\Local\Temp\server.exe
      "C:\Users\Admin\AppData\Local\Temp\server.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1756
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:628

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\server.exe

    Filesize

    23KB

    MD5

    6e6d2f25fe0c0749d169b526d5b04d30

    SHA1

    bdb9d5b480392c48974daede2d860c0e3f6f5bc8

    SHA256

    fe42a97a272f23621e6589b4c003922a3bbffdc7288b50517e6045cee3db9e8a

    SHA512

    701e0513483e6c08d9f99e5d71d0dac60bbb76a8cee4164f1a3fceb3c6d05f97c68e05e81c8f5c33a9e401dc7dc6ccf25bc0761fc235a13e06bc15cc827c7138

  • memory/1188-0-0x0000000074EA2000-0x0000000074EA3000-memory.dmp

    Filesize

    4KB

  • memory/1188-1-0x0000000074EA0000-0x0000000075451000-memory.dmp

    Filesize

    5.7MB

  • memory/1188-2-0x0000000074EA0000-0x0000000075451000-memory.dmp

    Filesize

    5.7MB

  • memory/1188-13-0x0000000074EA0000-0x0000000075451000-memory.dmp

    Filesize

    5.7MB

  • memory/1756-12-0x0000000074EA0000-0x0000000075451000-memory.dmp

    Filesize

    5.7MB

  • memory/1756-14-0x0000000074EA0000-0x0000000075451000-memory.dmp

    Filesize

    5.7MB

  • memory/1756-15-0x0000000074EA0000-0x0000000075451000-memory.dmp

    Filesize

    5.7MB